Trolley.



N0.7s6,855. PATBNTED AUG.1'8,1903. A.P.`L0Rn.

TROLLEY.

APPLIGATION FILED JAN. 12, 1903.

No MODEL* UNITED STATES Patented August 18, 1903.

PATENT OEEICE.

ALLEN P. LORD,'OF NORTH WARREN, PENNSYLVANIA, ASSIGNOR OF ONE- I-IALF TO O. P. DUNN, OF NORTH WARREN, PENNSYLVANIA.

TROLLEY.

SPECIFICATION forming part of Letters Patent N o. 736,855,` dated August 18, 1903.

Application iiled January`l2, 1903. Serial No. 138,690. (No model) This invention relates to trolleys; and it consists in certain improvements in the con stru ction thereof, as will be hereinafter fully described, and pointed out in the claims.

Among the objects of the invention may be stated the protection of the edges of the trolley-wheel from inj ury through impact with the wire or otherobstruction, a iinder for carrying the wire to the trolley, comprising peculiar improvements, as will appear more fully from the specification and claims; and the providing of the trolley with a harp which will readily free itself from wires as it is drawn to place. Y

The invention is illustrated in the accompanying drawings as follows:

Figure 1 shows a front elevation, partly in section, of the harp and trolley; Fig. 2, a side elevation; Fig. 3, an elevation showing a trolley-wire in its port.

on a rod B. The rod B is secured in sockets c3 in the sides of the harp C. The harp is formed by splitting a pipe forming a part of the pole and bending the sides so that at no place do they form a right angle, a suflicient slant being given to the sides to prevent their catching wires or other obstructions as the pole is being drawn down past them.. The sockets c are kept in proper position to hold the rod B by means of the contracting device comprising the rods c and turnbuckle. By using this means of fastening the edges of the harp are free from all obstructions for the purpose herein described.

Arranged at each side of the trolley-wheel are the guards d. These are formed of disks of metal, the edges Voverlapping the trolleywheel in position to receive the impact where the trolley meets any obstruction rather than the edges of the trolley-wheel. In this way the edges of the trolley-wheel remain true, and the trolley-wheel will run much more freely than in the batteredcondition it is apt to reach when used as ordinarily. I prefer to secure these guards to the iinder-spools D.

The finder-spools D are journaled on the rod B and are free to turn independently of the trolley A and of each other. They are 4provided with a spiral, which leads to the trolley-wheel. The guard d is cut away at d to permit the wire to pass by the guard to the trolleyvwheel. At the outer end of each spool 6o is a continuous groove d2, which prevents the wire from leaving the spool should the trolley be moved in a backward direction. I prefer that the spiral flare abruptly near the trolley in order that the spools may clear the supports E, with which the trolleywire e is usually carried. I prefer to make these spools of aluminium in that there is a tendency of the finder to spark, and I iind that aluminium does not burn out as readily as other metals. 7o

l. The combination with the trolleywl1eel A; of the guards CZ formedl of harder metal than the trolley-wheel, said guards being supported independently of the trolley-whe el and 7 5 extending over the edges of the wheel.

2. The combination of a trolley pole and wheel; of a supporting-harp having unobstructed surfaces along its outer edges, the

entire sides of the harp extending in direc- 8o tions less than at right angles to the pole; and a contracting device arranged between the sides of the harp.

3. The combination with a trolley pole and wheel; of a supporting-harp formed of a split piece of tubing, the sides extending at less than a right angle to the pole.

4. The combination with a trolley pole and wheel of a supporting-harp formed of .a split piece of tubing, the sides extending at less 9o Witnesses z CHARLES M. SHA'WKEY, GEO. B. MUNN, 

